- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: Citronin A
- Price: Check
- Purity: 98.0%
- Stocking Period: 10 Day
- Contact: Yang
- Email: sales@echemcloud.com
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: Citronin A
- Price: ￥328.0/25g ￥968.0/100g
- Purity: 98.0%
- Stocking Period: 3 Day
- Contact: Liu jia
- Email: 2130147988@qq.com
- ShangHai DC Chemicals Co.,Ltd
- China
- Product Name: Acid yellow 1
- Price: ￥Inquiry/1g
- Purity: 98.9%
- Stocking Period: 1 Day
- Contact: Tony Lai
- Email: order@dcchemicals.com
- DC Chemicals Limited
- China
- Product Name: Acid yellow 1
- Price: $Inquiry/100mg $Inquiry/250mg $Inquiry/500mg
- Purity: 98.0%
- Stocking Period: 3 Day
- Contact: Tony Cao
- Email: sales@dcchemicals.com
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: Naphthol Yellow S
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
- Email: enquiry@dycnchem.com
846-70-8
846-70-8 structure
- Name: Citronin A
- Chemical Name: naphthol yellow S
- CAS Number: 846-70-8
- Molecular Formula: C10H4N2Na2O8S
- Molecular Weight: 358.192
- Catalog: Chemical reagent Organic reagent Bicyclic compound
- Create Date: 2018-05-25 08:00:00
- Modify Date: 2025-08-20 16:34:06
-
Acid yellow 1 is a dye for amino acid and peptide precipitations.
| Name | naphthol yellow S |
|---|---|
| Synonyms |
Disodium 5,7-dinitro-8-oxido-2-naphthalenesulfonate
2-Naphthalenesulfonic acid, 8-hydroxy-5,7-dinitro-, sodium salt (1:2) MFCD00003958 EINECS 212-690-2 FD & C Yellow No. 1 Sulfur Yellow S Citronin A Disodium 5,7-dinitro-8-oxidonaphthalene-2-sulfonate Naphthol Yellow S Hydrate Acid yellow 1 NAPHTHOL YELLOW S 8-Hydroxy-5,7-dinitro-2-naphthalenesulfonic Acid Disodium Salt Ext. D & C yellow no. 7 Disodium 5,7-dinitro-8-oxidonaphthalene-2-sulphonate C.I. Acid Yellow 1 |
| Melting Point | >300℃ |
|---|---|
| Molecular Formula | C10H4N2Na2O8S |
| Molecular Weight | 358.192 |
| Exact Mass | 357.948364 |
| PSA | 180.28000 |
| LogP | 3.83130 |
CHEMICAL IDENTIFICATION
|
| Symbol |
GHS07, GHS08 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H317-H373 |
| Precautionary Statements | P260-P280 |
| Personal Protective Equipment | Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter |
| Hazard Codes | Xi,C,F |
| Risk Phrases | 11-34 |
| Safety Phrases | S24/25 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | 3 |
| RTECS | QK1813000 |
| HS Code | 2904909090 |
| HS Code | 2904909090 |
|---|---|
| Summary | HS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |